Registry record
- NPI
- 1083159917
- Profession
- Physician Assistant (PA)
- Specialty
- Physician Assistant (363A00000X)
- Practice address
- 2400 Hancock Dr
Austin, TX 78756 - Phone
- 3052980848
- In the registry since
- January 2, 2017
- Last NPPES update
- January 2, 2017
- Sole proprietor
- Yes
- License
- PA10378 (TX)
At this location
This location lists no other NP or PA providers in our current data.
In context
The NPI number of Catherine Callahan is 1083159917. They are a Physician Assistant in Austin, Texas.
Catherine Callahan is one of 644 Physician Assistants in Austin and one of 11,405 across Texas in our data. Austin ranks #4 among Texas cities in our dataset, with 2,782 NP and PA providers.
The NPI has been in the federal registry for 9 years, since January 2, 2017.
Frequently asked questions
What is NPI 1083159917?
NPI 1083159917 is the 10-digit National Provider Identifier assigned to Catherine Callahan, a Physician Assistant practicing in Austin, Texas. The record has been in the NPPES registry since January 2, 2017.
How do I verify this provider?
Cross-check NPI 1083159917 in the official CMS registry at npiregistry.cms.hhs.gov, and confirm license PA10378 with the TX licensing board. You can also run the number through our free NPI validator to confirm its checksum.
Is this information current?
This profile reflects the June 2026 NPPES data file. NPPES lists the record's last update as January 2, 2017. We refresh our data each month when CMS publishes a new file.
Data: NPPES public registry, June 2026 file. Not medical advice. Verify independently before care or credentialing decisions. Errors in the source record can be corrected at nppes.cms.hhs.gov; see our corrections page.